Plow attachment for tractors



Feb. 23 1926.

1,574,670 J. A. MAREK PLOW ATTACHMENT FOR TRACTORS Filed Oct. 10, 1924 2Sheets-Sheet 1 WITNESS:

ATTORNEY Feb. 23 1926.

J. A. MAREK PLOW ATTACHMENT FOR TRACTORS Filed Oct. 10, 1924 2Sheets-Sheet 2 y llvll I Fr ll Mme/g,

INVENTOR ATTORNEY WITNESS:

Patented Feb. 23,

uurrso stares.

JOHN A, MAREK, or YQAKUM, TEXAS.

eareur OFFICE;

PLOW ATTACHMENT FOR TRACTORS.

' Application filed. October 10, 1924. serial No. 742,907.

To all w/wm"itmayconccrnk U I V Be it known that I, JoirN Alrinnun, acitizen of the United. States, I'QSKllHQ at Yoakum, in the county ofLava'ca and State of Texas, have invented new and useful Improvements inPlow. Attachmentsfor True tors, of which the following is aspecification. l i

,lVly invention relates to plow attachments for tractors anditsprincipal object is to provide a plow or cultivator attachment fortractors embodying a plurality of earth breaking elements which can beadjusted rapidly with respect to each other to engage the ground atpredetermined points.

A further object of the invention to provide a plow attachmentiiortractors embodying'a lrzuneto be associated with the tractor and whichis provided with manuallyoperable means .whereby either one of the plowshares or earthbrealring elements may be adjusted transversely ofthe-tractor and which when not in use may be manually raised to anelevated position.

Still another object of the invention is to provide a plow attachmentfor tractors ombodying pivoted plow shares which are resilientlysupported so that in the event that either of the plow shares strike ahard surface bending or breaking of the plow beams will be prevented.The invention also contemplates an attachment for tractors which isprovided with a novel draft means that can be readily associated with aditlercntial housing of a tractor of well known make.

With the preceding; and other objects and advantages in mind, theinvention consists in the novel combination of elements, constructionand arrangement of parts and operation to be hereinafter specificallyreferred to, claimed and illustrated in the accompanying drawings,wherein Figure 1 is a top plan view ot a tractor with the plowattaclunont :isi-iociated there with.

Figure 2 is a side elevation of the same.

Figure 3 is a horizontal sectional view taken on line 3-3 of Figure 1.

Figure 4: is a transverse scctirmnl view taken on line l-.-it of: Figure3, and

Figure 5 is-a ii'agmontarv detail view showing the resilient connectionbetween one of the plow beams and the elevating; lever. I

Referring to the drawings in detail wherein correspondingcharacters ofreferonce denote corresponuing parts tiirtlaghout the several views,thenun'ieral 5 designates a tractor ot a well known type and 6 thedifferential housing therefor. I

l iiy attachment 0011211311805 a shaped "bar 7 provided with a forwardlyextending tongue which is detachably con nected with the draw bar 8 ofthe tractor. Angle plates 9 are longitudinally ad ustable in the channelshaped bar 7 and are pro.

vidcd with longitudinal slots 10. Fasteninggs llQlitQllCltlllOUgh theslots 10 and the channelshaped bar? and receive wing nuts 11 upon theirupper ends whereby the angle plates 9 are held in adjusted position.Laterally extendingpins 12 pro'iect from the vertical legs of the anglebrackets 9 as shown iirFigure 3 and pivotally mounted onthese pins 12are plow 'beamslii carrying. plow; shares orfother earth-breaking:elebolt 19 and extend rearwardlv at an angle and are secured to thechannel shaped bar adjacent its ends.

A hand lever 20 1s plvotally mounted upon the tongue 6 and is movablebetween the spaced bars 17 A reciprocable detent 21 is carried by thislever 20 and is adapted to engage with the teeth of the serrations 22provided on these bars 17 at their crest. A contractile spring 23 hasone end connected with the lever 20 and its opposite end con uected withthe forward ends of the bars 19 as indicated at 2% and normally urgesthe lever 20 in a forward direction. A V- shaped yoke is designated at25 and has its apex pivotally connected'with the lever 20 as indicatedat 26 and terminates in parallel legs 27 slidably received throughperforated cars 28 extending late-rally throu h the inner faces of theplow beams13; npansible coil springs 29 encircle thesepan channel allellegs 27 and have their lower ends bear leg against restart-metal 2t andtheir 2 newrero upper ends engageable with abutmen'ts fixed on theselegs 27.

Vith my improved plow attachment it will be observed that the plowshares may be adjusted toward or away from each other to plow or furrowthe ground at predetermined points. It will also be observed that whennot in use, the plow beams may be raised to elevate the plow shares bymeans of the lever 20 and connections between the same and the beams'13.In thisconnection it will be seen that the coil spring 29 will permitthe plow share to yield against the action of the springs in the eventthat the plow share strikes a hard surface or ob-, struction.

IVhile I have shown and described the preferred embodiment of theinvention, it is to be understood that changes in arrange ment of partsmay be made, and that I am only limited by the appended claims.

Having thus described the invention, I

claim 1. The combination with a tractor, of a transverse bar detachablyassociated with the tractor, earth breaking elements. pivotallyconnected with the transverse bar and extending rearwardly therefrom, aquadrant carried by the bar, a U-shaped seat carried by the upper endthereof, and adapted to embrace the differential housing of the tractor, a bolt passing through the housing and the seat, andfa levercooperating with the quadrant and operatively connected with the earthbreaking elements,

2. A- tractor attachment COl'llPlflSillg a transverse bar, platesassociated with the bar for longitudinal movement toward and away fromeach other, a plow beam pivotally con nected with each of the plates,overlapping bars carried by the beams, and adjustably connectedtogether, means for connecting the transverse bar to the tractor, apivoted lever, a Vshaped yoke pivotally connected with the lever andincluding parallel legs, perforated ears extending laterally from theplow shares and slidably receiving the legs, and contractile springsencircling the legs for engaging the perforated ears, abutments on thelegs with which the upper ends of the springs abut, the springspermitting the plow beams to yield upon striking an attachment.

vertical plane.

JOHN A. MAREK.

